alleryStart learning →Which event is fertilisation?
- Release of an ovum
- Delivery of the baby
- Embedding in the uterus
- Fusion of sperm and ovum
Show answer and solution
Correct answer: D. Fusion of sperm and ovum
Fertilisation is the fusion of a sperm with an ovum.
ICSE Class 10 Human Reproduction — practice questions — page 2
Explore 58 free Human Reproduction questions in ICSE Class 10 Biology. Open each question or exercise to read its content, reference answers and available explanation.
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Showing questions 31–58 of 58.
Which event is fertilisation?Read the answer and worked solution →The early divisions called cleavage are mainly:Read the answer and worked solution →Which sequence places three reproductive events in their normal order?Read the answer and worked solution →The menstrual cycle is measured from the start of one menstruation to:Read the answer and worked solution →The release of an egg from an ovary is called:Read the answer and worked solution →In a simplified 28-day cycle, ovulation occurs midway. Which day is this?Read the answer and worked solution →Growing ovarian follicles secrete increasing amounts of:Read the answer and worked solution →After ovulation, the remaining follicle becomes the:Read the answer and worked solution →Without fertilisation, the corpus luteum normally:Read the answer and worked solution →What normally happens to menstrual cycles during pregnancy?Read the answer and worked solution →The permanent cessation of menstrual cycles at the end of reproductive life is:Read the answer and worked solution →The period of pregnancy is called:Read the answer and worked solution →The delivery of a baby is termed:Read the answer and worked solution →Before birth, oxygen reaches the developing human embryo mainly through the:Read the answer and worked solution →Which placental transfer removes a respiratory waste from the embryo?Read the answer and worked solution →Why is the placenta also described as an endocrine tissue?Read the answer and worked solution →Which structure connects the embryo to the placenta?Read the answer and worked solution →Which tissues jointly form the placenta?Read the answer and worked solution →During birth, stronger contractions cause more oxytocin release. This is:Read the answer and worked solution →Which structure is expelled as part of the afterbirth?Read the answer and worked solution →Which inner foetal membrane encloses the fluid-filled cavity around the foetus?Read the answer and worked solution →Which outer foetal membrane surrounds the amnion?Read the answer and worked solution →Amniotic fluid chiefly protects the foetus from shocks by:Read the answer and worked solution →Which condition does amniotic fluid normally allow?Read the answer and worked solution →Fraternal twins usually develop from:Read the answer and worked solution →Which pair of twins usually has the greatest genetic similarity?Read the answer and worked solution →Which transfer illustrates the nutritive function of the placenta?Read the answer and worked solution →Where is the cap-like acrosome located on a human sperm?Read the answer and worked solution →
Worked practice questions
The early divisions called cleavage are mainly:
- Mitotic divisions
- Meiotic divisions
- Amitotic divisions
- Reduction divisions
Show answer and solution
Correct answer: A. Mitotic divisions
The zygote undergoes mitotic divisions during cleavage.
Which sequence places three reproductive events in their normal order?
- Fertilisation, implantation, cleavage
- Cleavage, implantation, fertilisation
- Fertilisation, cleavage, implantation
- Implantation, fertilisation, cleavage
Show answer and solution
Correct answer: C. Fertilisation, cleavage, implantation
Fertilisation forms the zygote, which divides before the embryo implants.
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